• 作者： 林敬二; 林裕盛; 胡建倧
• 作者服務機構： 國立臺灣大學化學系
• 中文摘要： 本文是以鈰鹽為引發劑探究竹材與甲基丙烯酸甲脂之接枝共聚反應。接枝共聚物之生成則係利用紅外線光譜技巧加以檢定。由實驗結果可以發現此接枝反應極依賴於鈰離子之濃度與接枝反應步驟。而最大接枝效果則發生於引發劑濃度在40℃時為5.0×10 莫耳／升左右之一狹窄範圍內。單體預處理之接枝百分比比引發劑預處理之接枝百分比要高得多。在無木質素及樹脂類化合物存在之下，全纖維素之接枝反應更有利於進行。從竹材隔離所得之全纖維素之接枝百分比可提高二倍以上，此實驗結果顯示甲基丙烯酸甲脂與竹材之接枝係經由纖維結構而發生。
• 英文摘要： Graftcopolymerization of methyl methacrylate onto bamboo using ceric salt as the initiator was in-vestigated. The formation of graftcopolymer was detected using infrared spectroscopic technique. Thegrafting reaction was found to depend strongly both on the concentration of ceric ion in the grafting systemand on the grafting procedure. Maximum grafting occurred in a narrow range of concentration of initiatoraround 5.0×10 mol/1 at 40℃. The monomer-pretreated grafting procedure gave considerably highergrafting percentage than the initiator-pretreated procedure. In the absence of lignin and resinous com-pounds, the grafting reaction of holocellulose proceeded much more favorably. More than a two-foldincrease in the grafting percentage was obtained for holocellulose isolated from bamboo，and grafting be-tween methyl methacrylate and bamboo through cellulose structure was indicated.
• 中文關鍵字： --
• 英文關鍵字： --